MojoEventViz: What’s Going On in Trafalgar Square?

I just saw a tweet commenting on crowds around Trafalgar Square, wondering what was going on…

What's going on in Trafalgar square?

Do the Twitter usernames provide a clue?

Here are the tweets:

What's happening in Trafalgar square pt 2

Ah – that’ll explain it…

About: A Bit of NewsJam MoJo – SocialGeo Twitter Map